Charging AGMs with truck alternator?
Can you charge AGM batteries with the trucks charging system, will this damage/reduce their life?
Forum Discussion
I put a volt meter on my 2011 Silverado and here is what I get.
After start up 15.1 or .2 for at least 20 min.
And then slowly goes down to 13.8 after a hour or so.
Then goes down to 13.2 after another hour.
This is an OEM setup and did not come with an AGM battery. The altinator is controlled by the computer! It looks to me that GM has it set to charge an AGM or ruin a wet cell.
After start up 15.1 or .2 for at least 20 min.
And then slowly goes down to 13.8 after a hour or so.
Then goes down to 13.2 after another hour.
This is an OEM setup and did not come with an AGM battery. The altinator is controlled by the computer! It looks to me that GM has it set to charge an AGM or ruin a wet cell.
